Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)

Autores
Castano, Melina; García, Germán Oscar; Córdoba, Tomás; Paz, Jesica Andrea; Zumpano, Francisco; Favero, Marco
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Extinction of species and population declines are occurring globally as a consequence of human activities, including the occurrence of urbanization processes transforming the structure of natural habitats and exposing organisms to novel environmental challenges. That is the current scenario in the northern coasts of Argentina, as well as Uruguay and Southern Brazil, regularly used as winter quarters by the Olrog's gull (Larus atlanticus). This regionally threatened species was formerly known to be specialized in crabs but now to have incorporated a range of anthropogenic items in its diet. As part of an ongoing long-term study on the foraging ecology and health status of the Olrog's gull we investigated the impact of urbanization on the body condition of free-living individuals, measuring a range of blood parameters as indicators of body condition. Eighty-two gulls (46 juveniles and 36 adults) were captured at two sites with radically different levels of urbanization. Body weight, and levels of hematocrit, red and white blood cells, mean cell volume, heterophils, lymphocytes, eosinophils, monocytes, basophils, heterophils-lymphocytes ratio, glucose, uric acid, total protein, cholesterol, and triglyceride were determined. Most of parameters didn't show significant differences between the two populations. However, independently of sex and age, individuals from areas with low urbanization showed higher values of uric acid (1052.53±452.35 μmol/l), and lower levels of cholesterol (6.47±1.76 mmol/l) than individuals from highly impacted areas (455.08±305.69 μmol/l and 8.35±3.07 mmol/l, respectively). Adults from areas with low urbanization showed lower values of hematocrit than adults from impacted areas (39.14±7.47% and 44.00±4.68%, respectively). These differences in blood parameters could be considered as proxy indicators of health condition in Olrog's gulls exposed to urbanization in winter quarters. Further studies should focus on the effect of individual condition on the species recruitment and breeding success, taking into account the endemism, reduced population size and fragile conservation status of the species.
Fil: Castano, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: García, Germán Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Córdoba, Tomás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Paz, Jesica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Zumpano, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Favero, Marco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
3rd World Seabird Conference
Australia
World Seabird Union
Materia
OLROG'S GULLS
BODY CONDICTION
URBANIZATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/231102
Acceder
id CONICETDig_2ddd1dff56977959dd9f5dc09ebf7f66
oai_identifier_str oai:ri.conicet.gov.ar:11336/231102
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)Castano, MelinaGarcía, Germán OscarCórdoba, TomásPaz, Jesica AndreaZumpano, FranciscoFavero, MarcoOLROG'S GULLSBODY CONDICTIONURBANIZATIONhttps://purl.org/becyt/ford/4.3https://purl.org/becyt/ford/4Extinction of species and population declines are occurring globally as a consequence of human activities, including the occurrence of urbanization processes transforming the structure of natural habitats and exposing organisms to novel environmental challenges. That is the current scenario in the northern coasts of Argentina, as well as Uruguay and Southern Brazil, regularly used as winter quarters by the Olrog's gull (Larus atlanticus). This regionally threatened species was formerly known to be specialized in crabs but now to have incorporated a range of anthropogenic items in its diet. As part of an ongoing long-term study on the foraging ecology and health status of the Olrog's gull we investigated the impact of urbanization on the body condition of free-living individuals, measuring a range of blood parameters as indicators of body condition. Eighty-two gulls (46 juveniles and 36 adults) were captured at two sites with radically different levels of urbanization. Body weight, and levels of hematocrit, red and white blood cells, mean cell volume, heterophils, lymphocytes, eosinophils, monocytes, basophils, heterophils-lymphocytes ratio, glucose, uric acid, total protein, cholesterol, and triglyceride were determined. Most of parameters didn't show significant differences between the two populations. However, independently of sex and age, individuals from areas with low urbanization showed higher values of uric acid (1052.53±452.35 μmol/l), and lower levels of cholesterol (6.47±1.76 mmol/l) than individuals from highly impacted areas (455.08±305.69 μmol/l and 8.35±3.07 mmol/l, respectively). Adults from areas with low urbanization showed lower values of hematocrit than adults from impacted areas (39.14±7.47% and 44.00±4.68%, respectively). These differences in blood parameters could be considered as proxy indicators of health condition in Olrog's gulls exposed to urbanization in winter quarters. Further studies should focus on the effect of individual condition on the species recruitment and breeding success, taking into account the endemism, reduced population size and fragile conservation status of the species.Fil: Castano, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: García, Germán Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Córdoba, Tomás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Paz, Jesica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Zumpano, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Favero, Marco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina3rd World Seabird ConferenceAustraliaWorld Seabird Union3rd World Seabird Conference2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/231102Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus); 3rd World Seabird Conference; Australia; 2021; 268-268CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.seabirds.net/events/wsc3/Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:24:25Zoai:ri.conicet.gov.ar:11336/231102instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:24:25.694CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
title Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
spellingShingle Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
Castano, Melina
OLROG'S GULLS
BODY CONDICTION
URBANIZATION
title_short Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
title_full Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
title_fullStr Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
title_full_unstemmed Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
title_sort Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus)
dc.creator.none.fl_str_mv Castano, Melina
García, Germán Oscar
Córdoba, Tomás
Paz, Jesica Andrea
Zumpano, Francisco
Favero, Marco
author Castano, Melina
author_facet Castano, Melina
García, Germán Oscar
Córdoba, Tomás
Paz, Jesica Andrea
Zumpano, Francisco
Favero, Marco
author_role author
author2 García, Germán Oscar
Córdoba, Tomás
Paz, Jesica Andrea
Zumpano, Francisco
Favero, Marco
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv OLROG'S GULLS
BODY CONDICTION
URBANIZATION
topic OLROG'S GULLS
BODY CONDICTION
URBANIZATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.3
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Extinction of species and population declines are occurring globally as a consequence of human activities, including the occurrence of urbanization processes transforming the structure of natural habitats and exposing organisms to novel environmental challenges. That is the current scenario in the northern coasts of Argentina, as well as Uruguay and Southern Brazil, regularly used as winter quarters by the Olrog's gull (Larus atlanticus). This regionally threatened species was formerly known to be specialized in crabs but now to have incorporated a range of anthropogenic items in its diet. As part of an ongoing long-term study on the foraging ecology and health status of the Olrog's gull we investigated the impact of urbanization on the body condition of free-living individuals, measuring a range of blood parameters as indicators of body condition. Eighty-two gulls (46 juveniles and 36 adults) were captured at two sites with radically different levels of urbanization. Body weight, and levels of hematocrit, red and white blood cells, mean cell volume, heterophils, lymphocytes, eosinophils, monocytes, basophils, heterophils-lymphocytes ratio, glucose, uric acid, total protein, cholesterol, and triglyceride were determined. Most of parameters didn't show significant differences between the two populations. However, independently of sex and age, individuals from areas with low urbanization showed higher values of uric acid (1052.53±452.35 μmol/l), and lower levels of cholesterol (6.47±1.76 mmol/l) than individuals from highly impacted areas (455.08±305.69 μmol/l and 8.35±3.07 mmol/l, respectively). Adults from areas with low urbanization showed lower values of hematocrit than adults from impacted areas (39.14±7.47% and 44.00±4.68%, respectively). These differences in blood parameters could be considered as proxy indicators of health condition in Olrog's gulls exposed to urbanization in winter quarters. Further studies should focus on the effect of individual condition on the species recruitment and breeding success, taking into account the endemism, reduced population size and fragile conservation status of the species.
Fil: Castano, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: García, Germán Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Córdoba, Tomás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Paz, Jesica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Zumpano, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Favero, Marco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
3rd World Seabird Conference
Australia
World Seabird Union
description Extinction of species and population declines are occurring globally as a consequence of human activities, including the occurrence of urbanization processes transforming the structure of natural habitats and exposing organisms to novel environmental challenges. That is the current scenario in the northern coasts of Argentina, as well as Uruguay and Southern Brazil, regularly used as winter quarters by the Olrog's gull (Larus atlanticus). This regionally threatened species was formerly known to be specialized in crabs but now to have incorporated a range of anthropogenic items in its diet. As part of an ongoing long-term study on the foraging ecology and health status of the Olrog's gull we investigated the impact of urbanization on the body condition of free-living individuals, measuring a range of blood parameters as indicators of body condition. Eighty-two gulls (46 juveniles and 36 adults) were captured at two sites with radically different levels of urbanization. Body weight, and levels of hematocrit, red and white blood cells, mean cell volume, heterophils, lymphocytes, eosinophils, monocytes, basophils, heterophils-lymphocytes ratio, glucose, uric acid, total protein, cholesterol, and triglyceride were determined. Most of parameters didn't show significant differences between the two populations. However, independently of sex and age, individuals from areas with low urbanization showed higher values of uric acid (1052.53±452.35 μmol/l), and lower levels of cholesterol (6.47±1.76 mmol/l) than individuals from highly impacted areas (455.08±305.69 μmol/l and 8.35±3.07 mmol/l, respectively). Adults from areas with low urbanization showed lower values of hematocrit than adults from impacted areas (39.14±7.47% and 44.00±4.68%, respectively). These differences in blood parameters could be considered as proxy indicators of health condition in Olrog's gulls exposed to urbanization in winter quarters. Further studies should focus on the effect of individual condition on the species recruitment and breeding success, taking into account the endemism, reduced population size and fragile conservation status of the species.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/231102
Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus); 3rd World Seabird Conference; Australia; 2021; 268-268
CONICET Digital
CONICET
url http://hdl.handle.net/11336/231102
identifier_str_mv Effect of urbanization on the individual condition of the regionally threatened Olrog`s gull (Larus atlanticus); 3rd World Seabird Conference; Australia; 2021; 268-268
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.seabirds.net/events/wsc3/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv 3rd World Seabird Conference
publisher.none.fl_str_mv 3rd World Seabird Conference
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842981354364469248
score 12.48226

Publicaciones similares